That's right, June. According to Joystiq's recent article covering Nintendo listing several release dates for Wii/DS games, MegaMan Star Force 3 Black Ace and Red Joker are slated for a June release as opposed to the much rumoured August one. While no specific date has been planned, this should come as a welcome surprise to those who have been waiting patiently for its release.
Capcom themselves have yet to make an official statement (which will likely be when the actual date is revealed) so I do suggest taking this with a bit of salt in mind, as things could change in the coming months. We will be keeping tabs on this as time rolls along.